Madison yells at Nick for endangering himself by jumping in the water after the wreckage of the sailboat. Travis shows up with the log book that Nick retrieved from the sailboat and says that they have a problem.

Travis informs Strand that, according to the log, the military has already burned San Diego to the ground. Strand proposes they hide from the fast-approaching ship by retreating to the coastline. Travis suggests Catrina Island, which has a ranger station that may offer supplies and a short-wave radio.

Madison, Travis, Nick, Alicia and Chris get off the boat. Strand stays on board with Ofelia and Daniel, who wants to monitor Strand.

Madison’s group approaches the house that she saw from the boat. A young boy — the one from the beach — runs out to greet them. Travis introduces himself to the boy’s father, George Geary, and asks permission to dock for the night.

Inside the house, George tells Travis that based on his communication with other ranger stations, he believes the entire country west of the Continental Divide has fallen and the border to Mexico has been completely sealed off.

In the kitchen, George’s wife, Melissa, probes Madison about her job as a guidance counselor and asks if she ever worked with younger children. Melissa introduces Madison to her teenage son, Seth.

Daniel checks in with Ofelia at the boat. Ofelia says she’s starting to understand the world better, which helps her understand him. “It’s cruel,” she says.

At the Geary house, Nick and Alicia play with the kids, Harry and Willa.

Harry brings Nick to his room and shows him action figures with red dots on their foreheads, representing gunshot wounds. Harry says that he won’t get sick because his family has “power pills.” “It’s like a vitamin,” he explains, “if I take it my family stays together.”

In the wheelhouse, Daniel accuses Strand of wanting to offload members of the group to conserve his resources. Strand deflects Daniel’s accusations.

George tells Travis that the apocalypse is all part of nature’s plan. “The world couldn’t sustain itself so it stood back and said enough. This is its course correction,” he explains. He says he raised his family on the island and intends for them to stay on the island.

As they head back to the boat, Madison tells Travis that Melissa may have flashed the light on purpose. She speculates that Melissa wants to leave the island but is too scared of George to say so.

On the boat Nick gazes at the stars. He muses to Alicia that being able to see the stars – without light pollution or smog to block them out – is an upside to the apocalypse. Changing topics, Nick tells her that he’s concerned about Harry and Willa’s future, or lack thereof.

The next day, Chris sees Seth walking toward the beach with a pickaxe. Seth brings Chris to the beach, where Infected are pounding on the chain-link fence. Seth slams the pickaxe into an Infected’s head and invites Chris to take a swing.

Travis looks for Chris.

Chris kills an Infected with the pickaxe. Seth praises his technique and explains that George taught him how to kill and survive. Travis finds them and tells Chris to return to the boat. He averts his eyes as Chris kills one more Infected.

Travis finds George at the house and recalls the days when Chris was mowing lawns and taking out garbage, rather than killing Infected. “This is how we manage now,” George says.

George enlists Travis’s help mending a fence. He tells Travis about a massive herd of Infected on a nearby marina and predicts that it’s only a matter of time before the herd finds them. Travis asks why George isn’t fleeing. “We all die. It’s a question of surrender or survival, acceptance or denial,” George says.

Alicia visits the ranger station and draws her boyfriend Matt’s tattoo on a bulletin board.

Nick looks for drugs in the Geary house and finds a baggie of pills hidden in George’s office.

Back on the Abigail, the ship finally disappears from the radar. Strand announces that it’s time to sail.

Madison tells Melissa that they’re setting sail and asks if Melissa had intentionally flashed the light to signal them. Melissa admits that she signaled them in the hopes that they would take Harry and Willa, since George and Seth are planning for the entire family to die together on the island.

Daniel searches the wheelhouse while Strand is gone. He finds a map of Baja, Mexico, inside a locked compartment.

Strand, alone, talks to someone on his satellite phone. “It’s all clear now,” he says. “Sundown. I’ll be there.”

On the boat, Nick tells Madison and Travis that he found poison in George’s office and predicts that George is planning on “Jonestown-ing” his family.

Travis, Madison and Nick return to the Geary house to take Harry and Willa. Melissa is hurriedly explaining some of her children’s quirks when George comes in. He angrily demands to know what’s happening when the argument is interrupted by Harry. Something is wrong with Willa, he reports. Upstairs, Willa is found dead after ingesting the “power pills” from George’s stash. Melissa cradles Willa, who turns and bites her. George agrees to let Travis take Harry but refuses to join them.

Travis’s group sprints to the boat with Harry. Seth chases them down with his rifle and forces them to give Harry back. Melissa, who’s now infected, walks toward them on the dock. Seth shoots Melissa while Harry’s back is turned.